7CALFEE CS, MATTHAY MA. Recent advances in mechanical ventilation[J]. Am J Med, 2005, 118(6): 584-591.
8SQUADRONE E, FRIGERIO P, FOGLIATE C, et al . Noninvasire vs invasive ventilation in COPD patients with severe acute respiratory failure deemed to require ventilatory assistance[J]. Intensive Care Med, 2004, 30(7): 1303.
9FERRER M, VALENCIA M, NICOLAS J M, et al. Early non- invasive ventilation averts extubation failure in patients at risk: a randomized trial[J]. Am J Respir Crit Care Med, 2006, 173(2): 164-170.
